1. Sure

Meaning:
To agree to do something
Example:
“Do you want to go and see a movie?”
“Sure. That sounds nice.”

2. Same to you

3.Must have

Meaning:
To work out that something has definitely happened
Example:
I must have eaten something bad because I feel very sick.

4. Sold out

Meaning:
For a store to have no more of an item because they’ve all been sold
Example:
Sorry, we have no more melons. They’re all sold out.

5. Put off

Meaning:
To not do something immediately even though it needs to be done
Example:
Why are you putting off doing your homework? It needs to be finished by tomorrow.